package com.zyg.service;

import com.baomidou.mybatisplus.extension.service.IService;
import com.zyg.pojo.Student;

import java.util.List;


public interface StudentService extends IService<Student> {
    List<Object[]> getGradeDistribution();

    // 获取学生专业分布数据
    List<Object[]> getMajorDistribution();

    List<Object[]> getHotelDistribution();

    List<Object[]> getAgeDistribution();
}
